File gage and clamp



(No Model.) 2 Sheets-Sheet 1.

J. STORM. FILE GAGE AND CLAMP.

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J. STORM.

FILE GAGE AND CLAMP.

No. 492,065. Patented Feb. 21, 1893.

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JOHN STORM, OF KIRKSVILLE, MISSOURI.

FILE GAGE AND CLAMP.

SPECIFICATION forming part Of Letters Patent NO. 492,065, dated February21, 1893.

Application filed February 27, 1892. Serial No. 423,086. (No model.) I

To all whom it may concern:

Be it known that 1, JOHN STORM, a citizen of the United States, residingat Kirksville, in the county of Adair and State of Missouri, haveinvented certain new and useful Improvements in File Gages and Clamps;and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and t the figures of reference markedthereon, which form a part of this specification.

Figure 1 represents a side elevation of a device embodying myimprovements. Fig. 2

is a similar view with the parts shown in a difierent position. Fig. 3is an edge View of my invention partly in section. Fig. 4 is a frontside elevation of my device, with the file-gage shown in position forsharpening the teeth of the saw. Fig. 5 is a detail view partly insection and partly broken away. Figs. 6 and 7 are detail viewshereinafter referred to. Fig. 8 is a side elevation of asawing machineto which I have applied my saw-clamp.

My invention relates to saw-blade clamps and means for filing the teethof saws.

My improvements consist, in the construction and combination of theseveral parts which will first be described in detail and the featuresof novelty therein then set forth in the claims. 1

In the drawings-1 represents the main bar or frame of the saw clamp.

2 is a bar hinged to the frame 1 by hinge 3,

and 4: represents a spanner-frame provided with a set screw 5 by meansof which the clamp 2 is adjusted against the side of the sawblade 6.

7 is a groove formed in one end of the main bar 1 within which thesaw-blade 6 takes and passes- 8 is a second spanner provided withasuitable binding or set screw, by means of which the saw clamp can beattached toany projecting part of a sawing machine, such as thedepending end 9 of the frame of such a machine.

10 is a set screw in the upper portion of the clamp for holding thesaw-blade in place against the main bar with a varying tension.

11 is a spanner or clamp at the lower end of the main bar 1 providedwith double set screws, by means of which my device may be attached tothe saw-guide or head of the machine.

I use in combination with my saw-clamp a file-gage and file forsharpening the teeth of the saw. This latter device I may, where desirable or practicable, attach to the main bar 1 by hinges 12.

13 is the hand-rest or bar, having a slot or cavity on its under sidewithin which the sawblade takes when the hand-rest is placed over thesame. Attached to the hand-rest 13 by the pivotal joint 14 is thefile-gage which is adapted to be swung in a plane with the rest 13 so asto lie at any angle thereto.

15 is the main frame of the file-gage, having bearings 16 within whichthe shaft 17 reciprocates.

18 is the file, preferably of the three-cornered variety, which is hungin bearings 19 and 20, carried by the shaft 17. The latter bearing 20 isadjustable upon the shaft 17 by a screw 21, and is composed of two partshaving bearings in the opposite ends, which are adapted to embrace boththe shaft 17 and the spool 22, in which the outer end of the file 17 isseated. This allows of different lengths and sizes of files to beinserted in my device.

23 is a collar which is inserted upon the shaft 17 and slipped over aboss 24. on the bearing 17, where it is securely held by a set screw 25.

26 is a longitudinal slot or spline cut in the periphery of the shaft17, within which takes a set screw 27 adapted to play therein during thereciprocal movements of the shaft 17, and

at the same time prevent any rotation of the shaft in its bearings.

In order to permit the file to engage the saw-teeth at any desiredvertical angle, the set screw is loosened and the collar 23 is swungaround upon the boss 24 carrying with it the shaft 17, by means of itsconnection with the collar through slot 26 and screw 27. This permitsthe file to be setdown upon the saw-teeth.

For the purpose of filing the teeth at any horizontal angle desired thefiling device is adapted to be horizontally swung upon the pivoted joint14 so that the file may engage the teeth diagonally.

I11 operation theleft hand is placed upon the hand-rest 13, and the filereciprocated by its handle by the right hand in a position similar tothat shown in Fig. 4.

The slot 26 is snfficiently wide to permit a limited oscillatingmovement of the shaft 17 in addition to its reciprocal motion. a

I claim 1. A saw-clamp consisting of a main bar, a bar-clam p hingedthereto, a clamp at one end for securing said bar to the saw-guide, aclamp 'at the other for securing said bar to the frame 0f the machine,and a clamp for holding the saw-blade in place.

. 2. The combination in a machine for filing and clamping the blades ofsaws of a filing device, consisting of a hand-rest adapted to bepivotally swung over the saw teeth, a fil- .the frame whereby the formermay be rotated on the latter, and a key or screw located on the collarand adapted to project within the slot.

In testimony whereof I affix my signature in presenceof two witnesses.

JOHN STORM. lVitnesses:

GEO. W. OLEM, PORTER R. SMITH.

